I've tried googling how many children the average family in the US has (for the moment I'm going off the US statistics with regards all this), but that doesn't really tell me enough, because plenty of anti-gay people won't have that second child, while plenty of gay couples will have children of their own. I've also been researching China's one-child policy, looking at the social and economic benefits it's resulted in (i.e., better and more available contraception, etc).
So my questions are: would this work to reduce the birth-rate/overall population, and what would the economic knock-on effects of it be? (As in, would less people actually mean a better life for those remaining?)
I have been convinced that this is a terrible idea and would not work in practical terms, probably not ever. So thank you for all the comments! But I won't be writing this story XD